Obs. : 2019-01-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.512e+11
Venus      3.438e+11
Earth      3.569e+11
Mars       3.542e+11
Jupiter    3.438e+11
Saturn     3.467e+11
Uranus     3.509e+11
Neptune    3.547e+11
Pluto      3.467e+11